Radiator.



J. M. FEDDERS.

RADIATOR.

APPLICATION FILED FEB. I 1914. EJWA WD Patented July 27, 1915.

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J. M. FEDDERS.

RADIATOR.

APPLICATION FILED $517,191

l mwflwm Patented July 27, 1915.

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JOHN M. FEDDERS, OF BUFFALO, NEW YORK, ASSIGNOB. TO FEDDERS MANUFACTURING COMPANY, INC., 0F BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

RADIATOR.

Application filed February 7, 1914.

gas engines which operate motor vehicles and has the object to simplify the construction and reduce the cost of the same while retaining the efliciency and general appearance of the more expensive types of radiators.

In the accompanying drawings: Figure 1 is a fragmentary front elevation of a radiator embodying my improvements.- Figs. 2 and 3 are vertical transverse sections in the correspondingly numbered lines in Fig. 7. Figs. 4 and 5 are horizontal sections in the correspondingly numbered lines in Fig. 1. Fig. 6 is a vertical section taken in line 6-6, Fig. 3. Figs. 7 and 8 are vertical longitudinal sections taken in line 7, Fig. 3, but looking in opposite directions. Fig. 9 is a fragmentary perspective view of several units of the radiator embodying my invention. Fig. 10 is a fragmentary perspective view of one of the radiating members of the radiator.

Similar characters of reference indicate corresponding parts throughout the several views.

1 represents the upper water inlet header or box which receives the water to be cooled from the engine, 2 the lower water outlet header or body from which the cooled water is returned to the engine, 3, 3, the vertical side pieces of the casing connecting the corresponding ends of the headers and 4 the cellular core which is arranged between the headers and side pieces and which is constructed to form a plurality of upright water tubes 6 connecting the upper and lower headers and a plurality of horizontal air tubes 7 arranged between the several water tubes and the side pieces.

Each of the water tubes is preferably con structed of two upright strips or walls of sheet metal. preferably copper or brass, which are arranged side by side and have their central parts 80 widely separated while the front and rear edges 8 are contracted by off-setting these edge portions inwardly relatively to the central parts of these walls.

Specification of Letters Patent.

Patented July 2?, llfivllfi. Serial no. 817,098.

The joints between the corresponding front and rear vertical edges of the walls of the tubes 6 are connected by solder or otherwise so as to seal them while these tubes open at their upper and lower ends into the interior of the upper and lower headers for conducting the water from the upper to the lower header. Between every two adjacent water tubes are arranged two upright tiers of horizontal air tubes which are formed partly by the strips of metal constituting the opposing walls of these water tubes.

The preferred construction of the air tubes shown in the drawings is as follows 9 represents an upright partition plate or strip of inferior metal, such as terne plate, which is arranged midway between the opposing walls of a pair of adjacent water tubes. On opposite sides of each of the partition plates are arranged two radiating sections, preferably of inferior metal, such as terne plate, and shaped to form with the partition plate and adjacent water tubes two tiers of horizontal air tubes. Each of these radiating sections comprises two upright bars 11, 11 engaging with one side of the partition plate at a distance from the front and rear vertical edges thereof, a plurality of vertical longitudinal webs arranged on said bars and consisting of a central section 12 connecting said bars and two end sections 13 arranged on the outer edges of these bars and in line with the central section. Pro jecting laterally and horizontally from the webs and preferably from the lower edges thereof and from that side opposite to the partition are a plurality of radiating flanges each of which consists of a central section 14: connected at its inner edge with the lower edge of one of the central web sections and end sections 15 connected at their inner edges with the lower edges of the end web sections 13. The flanges of the radiating section are so constructed that the central parts of the same are comparatively narrow or contracted while the end parts of the same are comparatively wide. These narrow parts of the radiating flanges engage with the wide central parts of. the 0pposing water tube wall or plate and the wide end parts of the radiating flanges engage with the contracted or off-set front and rear parts of the same water tube wall. The bars, webs and flanges of each radiating section are preferably formed out of a single fiat plate of metal by cutting the several flange sections partly out of the body of this plate and then bending the same at right angles to the bars and webs, thereby forming vertical rows of openings or perforations 16, 17, in the central and opposite edge portions of the plate from which the radiating section is made.

Each of the water tubes has the central wide parts of its wall provided with a plurality of horizontal grooves 18 each of which receives the outer edges of the sec tions of one of the opposing flanges, thereby retaining these parts in position relatively to each other in a vertical direction.

The underside of the lowermost pair of air tube flanges and the lower end of the partition plate or wall are covered by a transverse strip 19 of metal, such as copper or brass, and the upper flanges of the radiating sections and the upper end of the partition plate are likewise covered by a transverse strip 20 of metal, such as copper or brass, these coverings preferably constituting continuations of the adjacent side walls of two adjacent water tubes. The lower covering 19 is preferably formed integrally with the lower ends of the opposing walls of two water tubes while the upper covering 20 is formed by two integral extensions of the upper ends of said walls which are united by a lock seam 21, as shown in Figs. 2, 3 and 9, or by any other suitable means.

In the manufacture of the radiator the water tubes, partitions and radiating sections forming the air tubes are connected with each other at their front and rear edges and also with the headers. preferably by solder so as to produce a rigid structure as a whole which is not liable to give way under the strains to which the same is liable to be subjected while in use.

By constructing the walls of the water tubes of brass or copper and the radiating sections and partitions of terne plate, a con siderable saving in cost of material is efi'ected without reducing the cooling capacity of the radiator and without liability of pro ducing leaks by corrosion, inasmuch as all parts of the core which come in contact with water are made of non-corrosive material such as the higher priced copper or brass while the lower priced material such as terne plate is utilized for the partitions and radiating sections forming the main parts of the air tubes. Furthermore, by making the radiating surfaces in the manner described the same can be made from flat stock instead of stock put up in rolls and only about one half of the material is required to produce these surfaces as compared with the constructions heretofore in use, thereby reducing the costof making the radiators accordingly.

I claim as my invention:

1. A radiator comprising a core having a sheet provided with a plurality of upright bars, a plurality of webs each of which comprises a central section connecting said bars and two end sections projecting lengthwise from the outer sides of said bars in line with the central section, a plurality of flanges formed on said sheet and each composed of a central section projecting laterally from one of said central webs and two end sections projecting laterally from the end sections of the companion web, and a sheet engaging with the outer edges of the sections of the several flanges.

2. A radiator comprising a core having. a plurality of units, each unit comprising two tiers of air tube sections and having an inner sheet and two outer sheets arranged on opposite sides of the innersheet and each of said outer sheets having flanges cut out of the body of the same and projecting laterally therefrom, and a plurality of water tubes each having one of its side walls provided with grooves which receive the outer edges of the flanges of one tier of said tube sections.

3. A radiator comprising a core having a plurality of units, each unit comprising two tiers of air tube sections and having an inner sheet and two outer sheets arranged on opposite sides of the inner sheet and each of said outer sheets having flanges cut out of the bodv of the same and projecting laterally therefrom and each flange having a narrow central part and wide end portions forming lips at the outer corners of said flange, and a plurality of water tubes each having the central parts of the side walls widely separated and the front and rear edge portions contracted by off-setting the latter inwardly from the central parts. each of said Walls having its central part provided with grooves which receive the edges of the narrow central parts of said flanges while its off-set edge portions of said wall engage with the edges of the wide end por tions of said flanges.

Witness my hand this 5th day of February, 1914.

JOHN M. FEDDERS.

Witnesses 4 THEO. L. PoPr, E. M. GRAHAM.

P of this Patent ay e obtained for five cents each, by addressing the Commissioner of latentn. Washington, D. O. 

